Review on 🥛 Pavina Double-Wall Insulated Glass Set - Clear, 8 Ounces Each (Pack of 2) by Amy Mears

I would like to give five stars. Glass is an excellent insulator. Ice doesn't melt for long and drinks stay cool, allowing ice cubes to stay in the glass long after drinking. They feel good and look good. However, out of the four glasses I bought a week ago, two lost the white silicone seal that gently washes dishes by hand. Now water enters the hollow part of the glass. They have become ugly due to condensation on the inner walls and can no longer be used.